强流离子束发射度仪研制  

Development of an Emittance Measurement Unitfor High-current Ion Beam

作　　者：吴文忠[1] 郭之虞[1] 于金祥[1] 宋执中[1] 张征芳[1] 吕建钦[1] 于茂林[1] 王忠义[1] 邹宇斌[1] 

机构地区：[1]北京大学重离子物理研究所重离子物理教育部重点实验室,北京100871

出　　处：《原子能科学技术》2004年第z1期66-69,74,共5页Atomic Energy Science and Technology

基　　金：国家自然科学基金重点项目中能强流质子直线加速器资助课题(19835070)

摘　　要：介绍了一台基于多缝单丝法的强流离子束发射度仪,讨论了缝丝法的测量原理及该发射度仪的系统构成和设计要点,给出了利用该发射度仪对中国原子能科学研究院ECR离子源发射度的测量结果。对于强流离子束,只能采用短缝对束流进行不完全采样以实现充分的冷却。由此引起的系统误差,可以通过模拟计算估计其修正值。A high-current ion beam emittance measurement unit (EMU) is introduced in the paper. The measurement principle of slit-wire method is discussed. The system construction and design key-points of the EMU are discussed, too. The measurement results of emittance of ECR proton source at China Institute of Atomic Energy using the EMU were given. For high-current ion beam, short slits have to be used to sample part of beam so that effective cooling could be performed, which would introduce some systematic errors and its correction could be estimated by simulation.

关 键 词：强流 离子束 发射度 测量 缝丝法 

分 类 号：TL506[核科学技术—核技术及应用]